U SOUTHERN CALII'ORNIA ACADEMY OF SCIENCES. 



from its height of 9,000 feet to 5,000 feet and a vast crater 'e-f^t 

 in its midst. 



*Ency. Brit. 



If such results are possible in the present comparatively 

 feeble action of volcanic force, it seems probable that in the 

 earlier periods of the earth's history, intermittent catastrophic 

 action resulted in immeasurably greater destruction of the 

 earth's surface. 



When we consider that nearly all of the present dry land 

 of the earth consists of marine deposits of material derived 

 from older formations of rocks thousands of feet in thickness, 

 the question arises, Where were these older formations located, 

 and What has become of the remnants ? 



"We know by incontrovertible evidence of the rocks and 

 their inclosed fossil remains that the earth's crust has been 

 subjected to continuous alternations of elevation and depres- 

 sion, and what was dry land as continents and islands in one 

 period of the earth's history became the bed of the ocean in 

 another period, and new islands and continents were raised 

 from the bed of the former ocean, bringing up its records. The 

 records of the animal aixl vegetable life of the submerged lanfl 

 were buried in the bed of the new ocean, there to remain for 

 perhaps millions of years, until the wheel of time shall bring 

 them again above the ocean level, and supply some future race 

 with many of the missing pages of the Book of Nature. 



Among these missing pages it is probable that the records 

 of man in the earlier stages of his evolution may be buried. 



What would be the result should the continents of the 

 present be submerged, leaving only portions of the highest 

 ranges of mountains and islands above the surface of the 

 water ? 



The thickly populated countries would be absolutely de- 

 stroyed, a few human beings might escape the catastrophe, and 

 proceed with Nature's plan of evolution, as it has always been. 



PUBLICATIONS RECEIVED. 



"Wheats and Flours of Aristook County. " Maine Agricultural Ex- 

 periment Station. Bulletin No. 97. 



"Fourteenth Annual Eeport." University Arizona Experiment Sta- 

 tion. 



"Some Insects Attacking the Stems of Growing Wheat, Eye, Barley 

 and Oats." IT. S. Department Agriculture. Division Entomology. Bul- 

 letin No. 42. 



